1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
yKpoI14uk [10]
3 years ago
10

What is the nth term rule of the quadratic sequence below? 7, 14, 23, 34, 47, 62, 79

Mathematics
1 answer:
Julli [10]3 years ago
6 0

Answer:

Tn = Tn-1 + 2(n-1) + 5

Kindly note that Tn-1 means T subscript n-1

Step-by-step explanation:

Here, we want an expression for the nth term.

First term is 7

Then first common difference is 7

second common difference is 7 + 2

Third common difference is 9 + 2

So within the common differences, the nth term is 7 + (n-1) 2

Now, the nth term of the series would be;

Tn = Tn-1 + 7 + 2(n-1)

Tn = Tn-1 + 7 + 2n -2

Tn = Tn-1 + 2n + 5

Now there is a fix to this,

n for the term is not the same n for the common difference.

the 7th term works with the 6th common. difference, while the 8th term work for the 7th common difference.

So we might need to rewrite the final expression as follows;

Tn = Tn-1 + 2(n-1) + 5

You might be interested in
WILL GIVE THE BRAINIEST, THANKS, AND A 5 STAR RATING WITH 15 POINTS HELP ME PLZZ.
Alona [7]

Ermm, Don't you think it's 60?

Cause in my caculatons it's 60


5 0
3 years ago
Read 2 more answers
Help plz I need to solve this ​
tankabanditka [31]

Answer:

2,5

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
How do I solve problem 1?
alexira [117]
You do 90-45 bc the whole angel must equal 90

4 0
3 years ago
Read 2 more answers
Solve for x<br> A)9<br> B)33<br> C)45<br> D)62
sattari [20]

Answer:

A) 9

Step-by-step explanation:

R=7x+17

S=4x-6

Q=180-110=70

  • 4x-6+7x+17+70=180
  • 11x+81=190
  • 11x=180-81
  • 11x=99
  • x=99/11
  • x=9
3 0
3 years ago
A corollary needs which of the following geometric terms to be proven true?
noname [10]

Answer:

B. Identity

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • 2miles to 3,333 yards
    9·1 answer
  • A package delivery service divides their packages into weight classes. suppose that packages in the 14 to 20 pound class are uni
    14·1 answer
  • What is the solution to the system of equations?
    13·1 answer
  • Mauricio hits a baseball 4 times as often as Tony each game. He also hits 20 baseball's every Monday at practice. How many baseb
    5·1 answer
  • How do you solve the equation 9/14=-2
    6·1 answer
  • What is the surface area of this rectangular pyramid?
    9·1 answer
  • Donovan: m=312.3 b=18.5<br> Find the slope of the linear model
    5·1 answer
  • The number 85 is decreased to 83. What is the percentage by which the
    11·1 answer
  • How much is 48 from 12,5%
    12·1 answer
  • Calculate the percent change in net sales from
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!